<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
<meta name="viewport" content="width=device-width">
<meta name="theme-color" content="#222"><meta name="generator" content="Hexo 5.4.2">

  <link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon-next.png">
  <link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32-next.png">
  <link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16-next.png">
  <link rel="mask-icon" href="/images/logo.svg" color="#222">

<link rel="stylesheet" href="/css/main.css">



<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css" integrity="sha256-HtsXJanqjKTc8vVQjO4YMhiqFoXkfBsjBWcX91T1jr8=" crossorigin="anonymous">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.1.1/animate.min.css" integrity="sha256-PR7ttpcvz8qrF57fur/yAx1qXMFJeJFiA6pSzWi0OIE=" crossorigin="anonymous">

<script class="next-config" data-name="main" type="application/json">{"hostname":"xiaoqingming18.github.io","root":"/","images":"/images","scheme":"Muse","darkmode":false,"version":"8.15.1","exturl":false,"sidebar":{"position":"left","display":"post","padding":18,"offset":12},"copycode":{"enable":false,"style":null},"bookmark":{"enable":false,"color":"#222","save":"auto"},"mediumzoom":false,"lazyload":false,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"stickytabs":false,"motion":{"enable":true,"async":false,"transition":{"menu_item":"fadeInDown","post_block":"fadeIn","post_header":"fadeInDown","post_body":"fadeInDown","coll_header":"fadeInLeft","sidebar":"fadeInUp"}},"prism":false,"i18n":{"placeholder":"搜索...","empty":"没有找到任何搜索结果：${query}","hits_time":"找到 ${hits} 个搜索结果（用时 ${time} 毫秒）","hits":"找到 ${hits} 个搜索结果"}}</script><script src="/js/config.js"></script>

    <meta name="description" content="对象基础内容创建对象的两种方法一种是先创建对象（Object）的一个实例，再为其添加属性和方法，如下所示： 123456let girlFriend &#x3D; new Object();person.name &#x3D; &quot;吴大孬&quot;;person.age &#x3D; 18;person.say &#x3D; function() {    console.log(&quot;我爱小阿飞&quot;);}; 另一种是更流行的对象字面量方式创建： 12">
<meta property="og:type" content="article">
<meta property="og:title" content="对象、类与面向对象编程">
<meta property="og:url" content="http://xiaoqingming18.github.io/2023/04/24/%E5%AF%B9%E8%B1%A1%E3%80%81%E7%B1%BB%E4%B8%8E%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E7%BC%96%E7%A8%8B/index.html">
<meta property="og:site_name" content="鸣蜩十七">
<meta property="og:description" content="对象基础内容创建对象的两种方法一种是先创建对象（Object）的一个实例，再为其添加属性和方法，如下所示： 123456let girlFriend &#x3D; new Object();person.name &#x3D; &quot;吴大孬&quot;;person.age &#x3D; 18;person.say &#x3D; function() {    console.log(&quot;我爱小阿飞&quot;);}; 另一种是更流行的对象字面量方式创建： 12">
<meta property="og:locale" content="zh_CN">
<meta property="article:published_time" content="2023-04-24T08:52:52.000Z">
<meta property="article:modified_time" content="2023-04-24T17:02:51.263Z">
<meta property="article:author" content="鸣蜩十七">
<meta property="article:tag" content="笔记">
<meta property="article:tag" content="前端">
<meta property="article:tag" content="JavaScript">
<meta name="twitter:card" content="summary">


<link rel="canonical" href="http://xiaoqingming18.github.io/2023/04/24/%E5%AF%B9%E8%B1%A1%E3%80%81%E7%B1%BB%E4%B8%8E%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E7%BC%96%E7%A8%8B/">



<script class="next-config" data-name="page" type="application/json">{"sidebar":"","isHome":false,"isPost":true,"lang":"zh-CN","comments":true,"permalink":"http://xiaoqingming18.github.io/2023/04/24/%E5%AF%B9%E8%B1%A1%E3%80%81%E7%B1%BB%E4%B8%8E%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E7%BC%96%E7%A8%8B/","path":"2023/04/24/对象、类与面向对象编程/","title":"对象、类与面向对象编程"}</script>

<script class="next-config" data-name="calendar" type="application/json">""</script>
<title>对象、类与面向对象编程 | 鸣蜩十七</title>
  








  <noscript>
    <link rel="stylesheet" href="/css/noscript.css">
  </noscript>

<style>.github-emoji { position: relative; display: inline-block; width: 1.2em; min-height: 1.2em; overflow: hidden; vertical-align: top; color: transparent; }  .github-emoji > span { position: relative; z-index: 10; }  .github-emoji img, .github-emoji .fancybox { margin: 0 !important; padding: 0 !important; border: none !important; outline: none !important; text-decoration: none !important; user-select: none !important; cursor: auto !important; }  .github-emoji img { height: 1.2em !important; width: 1.2em !important; position: absolute !important; left: 50% !important; top: 50% !important; transform: translate(-50%, -50%) !important; user-select: none !important; cursor: auto !important; } .github-emoji-fallback { color: inherit; } .github-emoji-fallback img { opacity: 0 !important; }</style>
</head>

<body itemscope itemtype="http://schema.org/WebPage" class="use-motion">
  <div class="headband"></div>

  <main class="main">
    <div class="column">
      <header class="header" itemscope itemtype="http://schema.org/WPHeader"><div class="site-brand-container">
  <div class="site-nav-toggle">
    <div class="toggle" aria-label="切换导航栏" role="button">
        <span class="toggle-line"></span>
        <span class="toggle-line"></span>
        <span class="toggle-line"></span>
    </div>
  </div>

  <div class="site-meta">

    <a href="/" class="brand" rel="start">
      <i class="logo-line"></i>
      <p class="site-title">鸣蜩十七</p>
      <i class="logo-line"></i>
    </a>
      <p class="site-subtitle" itemprop="description">鸣蜩十七是和女朋友谈恋爱的日子</p>
  </div>

  <div class="site-nav-right">
    <div class="toggle popup-trigger" aria-label="搜索" role="button">
    </div>
  </div>
</div>



<nav class="site-nav">
  <ul class="main-menu menu"><li class="menu-item menu-item-home"><a href="/" rel="section"><i class="fa fa-home fa-fw"></i>首页</a></li><li class="menu-item menu-item-about"><a href="/about/" rel="section"><i class="fa fa-user fa-fw"></i>关于</a></li><li class="menu-item menu-item-tags"><a href="/tags/" rel="section"><i class="fa fa-tags fa-fw"></i>标签</a></li><li class="menu-item menu-item-categories"><a href="/categories/" rel="section"><i class="fa fa-th fa-fw"></i>分类</a></li><li class="menu-item menu-item-archives"><a href="/archives/" rel="section"><i class="fa fa-archive fa-fw"></i>归档</a></li><li class="menu-item menu-item-schedule"><a href="/schedule/" rel="section"><i class="fa fa-calendar fa-fw"></i>日程表</a></li><li class="menu-item menu-item-sitemap"><a href="/sitemap.xml" rel="section"><i class="fa fa-sitemap fa-fw"></i>站点地图</a></li><li class="menu-item menu-item-commonweal"><a href="/404/" rel="section"><i class="fa fa-heartbeat fa-fw"></i>公益 404</a></li>
  </ul>
</nav>




</header>
        
  
  <aside class="sidebar">

    <div class="sidebar-inner sidebar-nav-active sidebar-toc-active">
      <ul class="sidebar-nav">
        <li class="sidebar-nav-toc">
          文章目录
        </li>
        <li class="sidebar-nav-overview">
          站点概览
        </li>
      </ul>

      <div class="sidebar-panel-container">
        <!--noindex-->
        <div class="post-toc-wrap sidebar-panel">
            <div class="post-toc animated"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#%E5%AF%B9%E8%B1%A1%E5%9F%BA%E7%A1%80%E5%86%85%E5%AE%B9"><span class="nav-text">对象基础内容</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#%E5%88%9B%E5%BB%BA%E5%AF%B9%E8%B1%A1%E7%9A%84%E4%B8%A4%E7%A7%8D%E6%96%B9%E6%B3%95"><span class="nav-text">创建对象的两种方法</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#%E5%B1%9E%E6%80%A7%E7%9A%84%E7%B1%BB%E5%9E%8B%E5%8F%8A%E5%85%B6%E7%89%B9%E6%80%A7"><span class="nav-text">属性的类型及其特性</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#%E6%95%B0%E6%8D%AE%E5%B1%9E%E6%80%A7"><span class="nav-text">数据属性</span></a><ol class="nav-child"><li class="nav-item nav-level-4"><a class="nav-link" href="#%E8%AE%BF%E9%97%AE%E5%99%A8%E5%B1%9E%E6%80%A7"><span class="nav-text">访问器属性</span></a></li></ol></li></ol></li></ol></li></ol></div>
        </div>
        <!--/noindex-->

        <div class="site-overview-wrap sidebar-panel">
          <div class="site-author animated" itemprop="author" itemscope itemtype="http://schema.org/Person">
  <p class="site-author-name" itemprop="name">鸣蜩十七</p>
  <div class="site-description" itemprop="description">记录我的学习、生活和恋爱日常</div>
</div>
<div class="site-state-wrap animated">
  <nav class="site-state">
      <div class="site-state-item site-state-posts">
        <a href="/archives/">
          <span class="site-state-item-count">43</span>
          <span class="site-state-item-name">日志</span>
        </a>
      </div>
      <div class="site-state-item site-state-categories">
          <a href="/categories/">
        <span class="site-state-item-count">8</span>
        <span class="site-state-item-name">分类</span></a>
      </div>
      <div class="site-state-item site-state-tags">
          <a href="/tags/">
        <span class="site-state-item-count">37</span>
        <span class="site-state-item-name">标签</span></a>
      </div>
  </nav>
</div>

        </div>
      </div>
    </div>

    
  </aside>


    </div>

    <div class="main-inner post posts-expand">


  


<div class="post-block">
  
  

  <article itemscope itemtype="http://schema.org/Article" class="post-content" lang="zh-CN">
    <link itemprop="mainEntityOfPage" href="http://xiaoqingming18.github.io/2023/04/24/%E5%AF%B9%E8%B1%A1%E3%80%81%E7%B1%BB%E4%B8%8E%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E7%BC%96%E7%A8%8B/">

    <span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
      <meta itemprop="image" content="/images/avatar.gif">
      <meta itemprop="name" content="鸣蜩十七">
    </span>

    <span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
      <meta itemprop="name" content="鸣蜩十七">
      <meta itemprop="description" content="记录我的学习、生活和恋爱日常">
    </span>

    <span hidden itemprop="post" itemscope itemtype="http://schema.org/CreativeWork">
      <meta itemprop="name" content="对象、类与面向对象编程 | 鸣蜩十七">
      <meta itemprop="description" content="">
    </span>
      <header class="post-header">
        <h1 class="post-title" itemprop="name headline">
          对象、类与面向对象编程
        </h1>

        <div class="post-meta-container">
          <div class="post-meta">
    <span class="post-meta-item">
      <span class="post-meta-item-icon">
        <i class="far fa-calendar"></i>
      </span>
      <span class="post-meta-item-text">发表于</span>

      <time title="创建时间：2023-04-24 16:52:52" itemprop="dateCreated datePublished" datetime="2023-04-24T16:52:52+08:00">2023-04-24</time>
    </span>
    <span class="post-meta-item">
      <span class="post-meta-item-icon">
        <i class="far fa-calendar-check"></i>
      </span>
      <span class="post-meta-item-text">更新于</span>
      <time title="修改时间：2023-04-25 01:02:51" itemprop="dateModified" datetime="2023-04-25T01:02:51+08:00">2023-04-25</time>
    </span>
    <span class="post-meta-item">
      <span class="post-meta-item-icon">
        <i class="far fa-folder"></i>
      </span>
      <span class="post-meta-item-text">分类于</span>
        <span itemprop="about" itemscope itemtype="http://schema.org/Thing">
          <a href="/categories/JavaScript/" itemprop="url" rel="index"><span itemprop="name">JavaScript</span></a>
        </span>
    </span>

  
</div>

        </div>
      </header>

    
    
    
    <div class="post-body" itemprop="articleBody">
        <h1 id="对象基础内容"><a href="#对象基础内容" class="headerlink" title="对象基础内容"></a>对象基础内容</h1><h2 id="创建对象的两种方法"><a href="#创建对象的两种方法" class="headerlink" title="创建对象的两种方法"></a>创建对象的两种方法</h2><p>一种是先创建对象（<code>Object</code>）的一个实例，再为其添加属性和方法，如下所示：</p>
<figure class="highlight javascript"><table><tbody><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">let</span> girlFriend = <span class="keyword">new</span> <span class="title class_">Object</span>();</span><br><span class="line">person.<span class="property">name</span> = <span class="string">"吴大孬"</span>;</span><br><span class="line">person.<span class="property">age</span> = <span class="number">18</span>;</span><br><span class="line">person.<span class="property">say</span> = <span class="keyword">function</span>(<span class="params"></span>) {</span><br><span class="line">    <span class="variable language_">console</span>.<span class="title function_">log</span>(<span class="string">"我爱小阿飞"</span>);</span><br><span class="line">};</span><br></pre></td></tr></tbody></table></figure>
<p>另一种是更流行的对象字面量方式创建：</p>
<figure class="highlight javascript"><table><tbody><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">let</span> girlFriend = {</span><br><span class="line">    name = <span class="string">"吴大孬"</span>;</span><br><span class="line">	age = <span class="number">18</span>;</span><br><span class="line">    <span class="title function_">say</span>(<span class="params"></span>) {</span><br><span class="line">        <span class="variable language_">console</span>.<span class="title function_">log</span>(<span class="string">"我爱小阿飞"</span>);</span><br><span class="line">    }</span><br><span class="line">};</span><br></pre></td></tr></tbody></table></figure>
<h2 id="属性的类型及其特性"><a href="#属性的类型及其特性" class="headerlink" title="属性的类型及其特性"></a>属性的类型及其特性</h2><p>JavaScript使用一些<strong>内部特性</strong>来描述属性的特征。</p>
<p>JavaScript对象中的属性分为两类：<strong>数据属性</strong>和<strong>访问器属性</strong>。</p>
<h3 id="数据属性"><a href="#数据属性" class="headerlink" title="数据属性"></a>数据属性</h3><p>数据属性有以下4个内部特性来描述它们的行为：</p>
<ol>
<li><code>Congifurable</code>：默认为<code>true</code>，表示属性是否可以用<code>delete</code>删除，是否可以修改该属性的内部特性，以及是否可以把该属性改为访问器属性。</li>
<li><code>Enumberable</code>：默认为<code>true</code>，表示属性是否可以通过<code>for-in</code>循环返回。</li>
<li><code>Writable</code>：默认为<code>true</code>，表示属性的值是否可以被修改。</li>
<li><code>Value</code>：默认为<code>undefined</code>，此特性存储该属性的值。</li>
</ol>
<p>当我们显式地将属性添加到对象之后，<code>Configurable</code>、<code>Enumberable</code>和<code>Writable</code>都会被设置为<code>true</code>，而<code>Value</code>会被设置为给定的值，若没有为属性赋值，则<code>Value</code>为<code>undefined</code>。</p>
<p>可以使用<code>Object.defineProperty()</code>方法修改属性的默认特性。此方法接受3个参数：要给属性添加或修改特性的对象、属性名、描述符对象。其中，描述符对象上的属性名为要修改的特姓名，属性值为要给特性设置的值，看下面的例子：</p>
<figure class="highlight javascript"><table><tbody><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">let</span> girlFriend = {};</span><br><span class="line"><span class="title class_">Object</span>.<span class="title function_">defineProperty</span>(girlFriend,<span class="string">"name"</span>,{</span><br><span class="line">    <span class="attr">writable</span>: <span class="literal">false</span>,</span><br><span class="line">    <span class="title class_">Value</span>: <span class="string">"吴大孬"</span></span><br><span class="line">});</span><br><span class="line"><span class="variable language_">console</span>.<span class="title function_">log</span>(girlFriend.<span class="property">name</span>); <span class="comment">// 吴大孬</span></span><br><span class="line">girlFriend.<span class="property">name</span> = <span class="string">"吴小孬"</span>; <span class="comment">// 因为设置了writable为false，即只读，无法修改</span></span><br><span class="line"><span class="variable language_">console</span>.<span class="title function_">log</span>(girlFriend.<span class="property">name</span>); <span class="comment">// 吴大孬</span></span><br></pre></td></tr></tbody></table></figure>
<p>要注意的是，<strong>一个属性被定义为只读之后，就不可以再改为可修改的了</strong>。</p>
<p>并且，调用该方法修改属性的内部特性时，<strong>没有被指定的特性会默认为<code>false</code></strong>。</p>
<p>多数情况下并不需要使用此方法，此处只是为了了解JavaScript的对象特性。</p>
<h4 id="访问器属性"><a href="#访问器属性" class="headerlink" title="访问器属性"></a>访问器属性</h4><p>访问器属性不包含数据值，它们包含一个获取函数<code>get()</code>和一个设置函数<code>set()</code>。在读取访问器属性时，会调用获取函数返回一个有效值，在写入访问器属性时，会调用设置函数传入新值。</p>
<p>访问器属性有4个特性描述它们的行为：</p>
<ol>
<li><code>Configurable</code>：默认为<code>true</code>，表示属性是否可以用<code>delete</code>删除，是否可以修改该属性的内部特性，以及是否可以把该属性改为数据属性。</li>
<li><code>Enumberable</code>：默认为<code>true</code>，表示属性是否可以通过<code>for-in</code>循环返回。</li>
<li><code>Get</code>：获取函数，在读取属性时调用，默认为<code>undefined</code>。</li>
<li><code>Set</code>：设置函数，在写入属性时调用，默认为<code>undefined</code>。</li>
</ol>
<p><strong>访问器属性无法直接定义，必须使用<code>Object.defineProperty()</code>来定义</strong>。看下面的例子：</p>
<figure class="highlight javascript"><table><tbody><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">let</span> book = {</span><br><span class="line">    <span class="attr">year_</span>: <span class="number">2017</span>,</span><br><span class="line">    <span class="attr">edition</span>: <span class="number">1</span></span><br><span class="line">};</span><br><span class="line"></span><br><span class="line"><span class="title class_">Object</span>.<span class="title function_">defineProperty</span>(book,<span class="string">"year"</span>,{</span><br><span class="line">    <span class="title function_">get</span>(<span class="params"></span>) {</span><br><span class="line">        <span class="keyword">return</span> <span class="variable language_">this</span>.<span class="property">year_</span>;</span><br><span class="line">    },</span><br><span class="line">    <span class="title function_">set</span>(<span class="params">newValue</span>) {</span><br><span class="line">        <span class="keyword">if</span>(newValue &gt; <span class="number">2017</span>) {</span><br><span class="line">            <span class="variable language_">this</span>.<span class="property">year_</span> = newValue;</span><br><span class="line">            <span class="variable language_">this</span>,edition += newValue - <span class="number">2017</span>;</span><br><span class="line">        }</span><br><span class="line">    }</span><br><span class="line">});</span><br><span class="line"></span><br><span class="line">book.<span class="property">year</span> = <span class="number">2018</span>;</span><br><span class="line"><span class="variable language_">console</span>.<span class="title function_">log</span>(book.<span class="property">editon</span>); <span class="comment">// 2</span></span><br></pre></td></tr></tbody></table></figure>

    </div>

    
    
    

    <footer class="post-footer">
          <div class="post-tags">
              <a href="/tags/%E7%AC%94%E8%AE%B0/" rel="tag"># 笔记</a>
              <a href="/tags/%E5%89%8D%E7%AB%AF/" rel="tag"># 前端</a>
              <a href="/tags/JavaScript/" rel="tag"># JavaScript</a>
          </div>

        

          <div class="post-nav">
            <div class="post-nav-item">
                <a href="/2023/04/24/%E6%95%B0%E6%8D%AE%E5%BA%93%E5%8E%9F%E7%90%86%EF%BC%9A%E6%B1%82%E6%9C%80%E5%B0%8F%E4%BE%9D%E8%B5%96%E9%9B%86%E5%92%8C%E5%80%99%E9%80%89%E9%94%AE/" rel="prev" title="数据库原理：求最小依赖集和候选键">
                  <i class="fa fa-chevron-left"></i> 数据库原理：求最小依赖集和候选键
                </a>
            </div>
            <div class="post-nav-item">
                <a href="/2023/04/25/SqlServer-%E5%88%9B%E5%BB%BA%E7%B4%A2%E5%BC%95/" rel="next" title="SqlServer:创建索引">
                  SqlServer:创建索引 <i class="fa fa-chevron-right"></i>
                </a>
            </div>
          </div>
    </footer>
  </article>
</div>






</div>
  </main>

  <footer class="footer">
    <div class="footer-inner">


<div class="copyright">
  &copy; 
  <span itemprop="copyrightYear">2023</span>
  <span class="with-love">
    <i class="fa fa-heart"></i>
  </span>
  <span class="author" itemprop="copyrightHolder">鸣蜩十七</span>
</div>
  <div class="powered-by">由 <a href="https://hexo.io/" rel="noopener" target="_blank">Hexo</a> & <a href="https://theme-next.js.org/muse/" rel="noopener" target="_blank">NexT.Muse</a> 强力驱动
  </div>

    </div>
  </footer>

  
  <div class="toggle sidebar-toggle" role="button">
    <span class="toggle-line"></span>
    <span class="toggle-line"></span>
    <span class="toggle-line"></span>
  </div>
  <div class="sidebar-dimmer"></div>
  <div class="back-to-top" role="button" aria-label="返回顶部">
    <i class="fa fa-arrow-up fa-lg"></i>
    <span>0%</span>
  </div>

<noscript>
  <div class="noscript-warning">Theme NexT works best with JavaScript enabled</div>
</noscript>


  
  <script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/3.2.1/anime.min.js" integrity="sha256-XL2inqUJaslATFnHdJOi9GfQ60on8Wx1C2H8DYiN1xY=" crossorigin="anonymous"></script>
<script src="/js/comments.js"></script><script src="/js/utils.js"></script><script src="/js/motion.js"></script><script src="/js/schemes/muse.js"></script><script src="/js/next-boot.js"></script>

  




  




  

  <script class="next-config" data-name="enableMath" type="application/json">true</script><script class="next-config" data-name="mathjax" type="application/json">{"enable":true,"tags":"none","js":{"url":"https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.2.2/es5/tex-mml-chtml.js","integrity":"sha256-MASABpB4tYktI2Oitl4t+78w/lyA+D7b/s9GEP0JOGI="}}</script>
<script src="/js/third-party/math/mathjax.js"></script>



</body>
</html>
